When speaking about Bakhmut (Artemovsk) and Soledar (literally--the gift of salt in Russian), including presenting for the fanboys of General Patton what is underneath the area.
The prolonged battle for Bakhmut is portrayed in the press as a symbol of Russian weakness. I know that many Westerners have scratched their heads and wondered why such a fierce battle is being waged over this particular piece of territory. The answer, I believe, lies below the surface of Bakhmut/Soledar in the Soledar Salt Mines (aka Artyomsol Salt Mines). The Salt mine is a monster, with a 125 miles of tunnels.
I strongly suggest you to read the piece and see some images of what is there. This is especially important for those who believe in Hollywood version of war.